Converted but never used! My players love minimising combat and finding alternate ways to do things. They also focus on the matter at hand and take the most direct route. Which makes sense if the quest they are on is world shaking. No time to do fetch quests!
Armour Class 18 (leathery skin and bits of plate)
Hit Points 162 (12d12 + 78)
Speed 30 ft.
STR 25 (+7) DEX 9 (-1) CON 23 (+6)
INT 11 (+0) WIS 14 (+2) CHA 13 (+1)
Saving Throws Dex +3, Con +10, Cha +5
Skills Athletics + 11, Perception +6
Damage Immunities disease, poison
Senses passive Perception 16
Languages Giant , Common
Challenge 11 (7,200)
Disease. While ash giants are immune to disease, they carry a contagious form of leprosy. Any creature struck by an ash giant’s attacks is exposed to this virulent sickness.
Ash Leprosy: This disease causes puss filled sores to appear on the creatures’ body that form festering wounds once they erupt. The creatures hit point maximum is reduced by 1 per day until they receive a lesser restoration spell (or equivalent) as well as disadvantage on all Charisma based skill checks. A DC 16 Medicine check will also heal the leprosy after 10 success (one per day maximum).
Vermin Empathy. Ash giant have an affinity for vermin, in particular those made up of swarming creatures. Swarms of vermin obey ash giants.
Multiattack. The giant makes two huge bone pick attacks.
Huge Bone Pick. Melee Weapon Attack: +11 to hit, reach 10ft., one target.
Hit: 28 (6d6 + 7) piercing damage plus ash leprosy (DC 16 Constitution to avoid infection).
Sweeping Strike (Natural 17+). Bundur sweeps his bone pick in front of him making a huge bone pick attack against everyone in melee range and pushing them back 20 feet on a hit. The target must make a DC 16 Strength or Dexterity check or fall prone.
Rock. Ranged Weapon Attack: +11 to hit, range 60/240 ft., one target.
Hit: 29 (4d10 + 7) bludgeoning damage.
Towering above a typical human, this misshapen giant’s pale flesh is covered in purulent sores and bulbous tumors. Ash giants were once common hill giants until the Rain of Stars turned Nimmeria into an apocalyptic wasteland. The long exposure to radiation has made them bigger and stronger but also cursed with a disease called ash leprosy.